<?php

use yii\helpers\Html;
use yii\grid\GridView;

/* @var $this yii\web\View */
/* @var $searchModel app\models\BookSearch */
/* @var $dataProvider yii\data\ActiveDataProvider */

$this->title = Yii::t('app', 'Books');
$this->params['breadcrumbs'][] = $this->title;
?>
<div class="book-index">

    <h1><?= Html::encode($this->title) ?></h1>
    <?php // echo $this->render('_search', ['model' => $searchModel]); ?>

    <p>
        <?= Html::a(Yii::t('app', 'Create Book'), ['create'], ['class' => 'btn btn-success']) ?>
    </p>

    <?= GridView::widget([
        'dataProvider' => $dataProvider,
        'filterModel' => $searchModel,
        'columns' => [
            'book_id',
            'name',
            'author_id',
            [
                'label' => 'Author Name',
                'value'=>function ($model, $key, $index, $column) {                     
                    return empty($model->author) ? '' : $model->author->getLongName(); 
                },
            ],            
            'pages_amount',
            'publication',

            ['class' => 'yii\grid\ActionColumn'],
        ],
    ]); ?>

</div>
